Slight cold climate characteristics

The climatic characteristics of slight cold solar terms are minimum temperature, strong wind cooling, rain and snow.

Slight cold is the 23rd solar term in 24 solar terms, the 5th solar term in winter, the end of calendar month and the beginning of ugly month. Fighting fingers; The meridian of the sun is 285; It is celebrated every year on June 5-7 of 65438+ 10 in Gregorian calendar. Cold air is cold for a long time, and slight cold means that the weather is cold but not extreme. Like severe cold, mild summer heat, severe summer heat and intense summer heat, it is a solar term indicating temperature change.

The slight cold solar term is characterized by cold, but it is not extremely cold. In the slight cold season, the direct point of the sun is still in the southern hemisphere, and the heat in the northern hemisphere is still in a state of loss. The heat absorbed during the day is still less than the heat released at night, so the temperature in the northern hemisphere continues to decrease.

After the winter solstice, the cold air frequently goes south, and the temperature continues to drop, and the temperature drops to the lowest during the slight cold and severe cold in a year. There is a folk saying that "it's 239 when it's cold, and it's shivering with cold", which shows the cold degree of solar terms.

Knowledge expansion

Climate is a statistical description of weather phenomena in a certain region of the earth for many years, including temperature, precipitation, wind and other meteorological factors. The formation of climate is related to many natural factors, such as latitude, topography, ocean currents and atmospheric circulation. These factors have an important influence on the local climate characteristics and climate types.

First of all, latitude is one of the important factors affecting climate. The solar radiation energy received at different latitudes on the earth is different, which directly affects the local temperature and precipitation. Generally speaking, there is plenty of heat in low latitudes, and it is relatively cold in high latitudes.

Therefore, the climate types in low latitudes are mostly tropical rain forests and savanna, while in high latitudes, they are mostly cold tundra and ice sheets.

Secondly, topography is also one of the important factors affecting climate. The change of topography will lead to the uneven distribution of solar radiation energy received by the surface, which will further affect the temperature and precipitation. For example, there is a great difference in precipitation between windward slopes and leeward slopes in mountainous areas. Because of the high terrain, low temperature and less precipitation in plateau areas.

Therefore, the influence of topography on climate is very complicated, and it is necessary to analyze the influence of different topography on local climate.

Third, ocean currents are also one of the important factors affecting climate. Ocean current refers to the large-scale water flow in the ocean, which has an important impact on the earth's climate system. Ocean currents can affect the distribution of temperature and precipitation and bring heat from one area to another. For example, the North Atlantic warm current has an important impact on the climate in Europe, making Europe warmer than other regions at the same latitude.

Finally, atmospheric circulation is also one of the important factors affecting climate. Atmospheric circulation refers to the large-scale airflow movement in the earth's atmosphere, which has an important impact on the global climate system. For example, monsoon circulation is a form of atmospheric circulation, which makes Asia wet and rainy in summer and dry and cold in winter.

In a word, climate is a complex phenomenon, which is influenced by many factors. The comprehensive effect of these factors leads to the differences of climate characteristics and climate types in different parts of the earth. Understanding the laws of climate formation and change is of great significance for forecasting weather, protecting environment and planning economic development.